Tabarani recorded this in al-Mu'jam al-Awsat from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) as a mawquf report (a saying of the Companion). Regarding the saying of Allah Almighty: "Or a remnant of knowledge," Sayyiduna Ibn Abbas (may Allah be pleased with them both) said: "It refers to fine handwriting."
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب العلم / 928
Hadith Gradingمحدثین:إسنادہ ضعیف۔
Hadith Takhrij«اخرجه الامام الطبراني فى معجم الاوسط 472»